Lock for doors and the like.



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LOCK FOR DOORS AND THE LIKE.

APPLICATION FILED JULY 22. I9l8.

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LOCK FOR DOORS AND THE LIKE.

APPLICATION FILED JIlLY 22. i918.

Patented Apr. 8, 1919.

Mull/1% rra ENQ.

LOCK FOR :DOORS ANI.) THE LIKE.

Specication of Letters Patent.

Patented Apr. 8,1919.

Application led July 22, 1918. Serial No. 246,170.

To all whom t may concern: l

Be it known that we, GHARLns E. HoBsoN and JACKSON VANNOY, citizens of the United States, residing at Fremont, in the county of Mahaska, State of Iowa, have invented certain new and useful Improvements in Locks for Doors and the like; and we do hereby declare the following to be a full, clear, and exact description of the invention, such 'as will enable others skilled in the art to which it appertains to make and use the same.

This invention is an improvement in locks and has particular reference to a iiuid pressure operated look for car doors `and the like.

An object of the invention is to provide an improved mechanism including. a lock the adjustment of'v which to locking position is controlled by pressure from the air brake system of a train.

Another obj ect is the provision of improved means for storing a quantity of iiuid pressure within a car and utilizing the same to retain the lock or locks of the car in operative position after the pressure from the train pipe is cut olf.

A. further object is to provide meansfor releasing pressure from the storage tank to adjust the look or locks to inoperative position and control said release whereby the time involved in eii'ecting the unlocking operation may be varied.

A still furtherobject is to give warning of an attempt to open a door of a car by unauthorized persons by providing a sounding signal operated by the release of pressure from the storage tank,

T he inventive idea involved is capable of receiving a, variety of mechanical expressions one of which, for the purpose of illustrating the invention, is shown in the accompanying drawings, wherein Figure 1 is a fragmentary side elevation of a freight car showing theV invention applied thereto.

Fig. 2 is a transverse section.

Fig. 3 is an enlarged longitudinal section on the line 3-3 of Fig. 1.

Fig. 4 is a top plan view of thestorage tank.

Fig. 5 is a longitudinal section thereof. Fig. 6 is a sectionalY view through the check valve for the tank.

Fig. 7 is a perspective view of one of the hasp members of the lock.

Fig. 8 is a detail view of a disk valve for conltrolling the release of pressure from the tan .c v

The lock which comprises the essential feature of the invention is adapted for use on doors and windows and is shown, in the accompanying. drawings, as applied to the sliding doors 11 of a freight car 12.

Each lock preferably comprises a hasp 18 vpivoted to the door.- 11, at 14, and provided at its freev end with a transverse plate 15 having openingsv 16 at each end thereof adapted to receive eye bolts 17 carried by the frame of the door and adapted to receive a locking pin 18 for retaining the hasp in locking position in addition to the fluid pressure operating means, presently to be described, yfor performing the same function. The hasp further comprises a locking plate 19 pivotally mounted upon a pintle 20 secured transverselyto the free end of the hasp and said plate is adapted to extend into a slot 21 formed in the door frame and is provided with an opening 22 adjacent its free end Vfor receiving the outer end of a locking member 23 in the form of a bolt which is operated by the fluid pressure means to be described. When it is desired to dispense with the use of the fluid pressure means, the locking plate 19 may be swung to a position along side the body of the hasp so that the same will not extend into' the slot 21 when the hasp is adjusted to its locking position. The locking bolt 23 of each of the locks `is preferably mounted to slide in one end of a cylinder 24 recessed between the walls of the car adjacent the door frame and said bolt is provided upon its inner end with a piston head or plunger 25 between which and the end of the cylinder in which the 'bolt is mounted is interposed a coil spring 26 for normally retaining the bolt `in a retracted or inoperative position. The end of the cylinder opposite to that in which thebolt 23 is slidable has connected thereto one end of a pipe or flexible tube 27 for supplying fluid pressure to the cylinder from the storage tank 28 to one end of which the `other end of the pipe 27 is connected. v

The tank 28 is preferably mounted adjacent the top of the car and transversely thereof and is supplied with fluid pressure through a pipe or tube 29 one end of which is connected to the air brake system (not shown) of a train while the other end thereof is connected to an inlet 30 carried by the Y 3% Willl operate the tank., intermediate itsI ends, and having a check valve 3l therein operable to close-said inlet when the. pressure; in the' tankA and pipe. 29 equalize or when the pressure in said pipe falls below that in the taiilnasewhenltheair brake system is disconnected from the car.

In, this; manner` it, will be apparent that should thel air brake systemrbecome accidentally or otherwise disconnected from the car the escape of pressure from the tank 28 'Will be prevented until' releasediin a man-ner e tank, said branchl pipes'33k each having an opening4 34' adjacent Athe inner end thereof for permitting the escape of pressure. In order that the escape of: pressure through the openings 3 4 may. vbe normally prevented; each pipe 33,h'as mounted therein a piston 35 tov whichl is connected one end of., a rod -36 adjustablelongitudinally ofthe pipe and havingI its outer end slidably mounted in the side of the carv andfextendingfexteriorly thereofso that said rodk may be, operatedfrom the outsider of the car. When it" is desiredlj to'retai'n the pressure Within,y the tank 28 these rods 36y are forced inwardly so thatgth'e pistons 35 Willlbeapositionedl between thefo'penings Y 34;. and the eonnectionsofthe pipes33l'with the outlet 32,Y and in order;that the pressure from the outlet 32 will notfonce the pistons 35 outwardly the rods 365 are threaded into Vthe outer ends ofthe pipes 33 as. indicated at 37; llt Will be apparent from this description that When` itis desired to release. the pressure in the tank 28g4 either one or both of the rods 36 are adjusted outwardlyi so that the pistons 35` Willi be; disposed` between the openings 34X andj the 'outer ends off the piqies33- and th-,usallow thepressureto pass from the outletV 32; throughl said openings. In order, tol minimize they dangerv offcars beingopened `by unauthorized persons, asounding signalH such', as a Whistle 38 is mounted upon a rod 39`-extendingfrom the outlet@ 32, and. disposed in suchv position that the escape; of pressure-through" the openings A sameauntilf the pressure in, the tank isv exhausted It. is further proposed to control"J the release yof, pressure' fnoln. the tank 23 in order thatthe time consumed in effecting the adjustment of the locking bolt 23 to its inoperative position may be varied. To this erich use-s preferably made of. a disk valve d() having an annular series of openings 42 and; lQtatatly mounted upon the outer end of. the outlet 32 and held thereon by means of. .a1 key, 4-1. The inner face of theA valve 40 is in engagement with a plate 4l having openings 4512 registering with the openings 34e. The openings 4:2 Lre arranged in an annular series and1 thesey openings through each halfof the series, gradually increase in area, oppositely' disposed openings. olf-the series being preferably of the same size so that when the same are in registration with the oppositeopenings 34, a like amQunt of pressure Will escape thro'uglr said openings. By this means, it Wilfl be apparent th'atshoul-d it be desirable to open theA doors in a comparatively short time, the valve 40 is rotated until they largest openings therein are in registration with the openings 34;, This adjustment is made before doors are locked)y and the oars ready for transportation. If it is desirablethat the pressure in the tank- 28 escape slowly so thatthe timeV consumed in open-ingI the doors, after thel adjustment ofthe rods 36, Will be prolonged the valve -i'Olis adjusted so that smaller oppositely disposed* openings are in registration with said openings 34. A

What* is claimed is 1. In a fluid pressure controlled lock for doors and the like, the combination of a vlock including a: pressure controlled lockingmenrber, a storage tank fromjvhich pressure is suppliedto adjust said locking member tooperati`ve position, means for releasingr the pressure from. said tank whereby said looking memberwill return to its inoperative iosition, and meansfor controlling the re ease of said pressurey from the tank to regulate the time required for the locking member to move to inoperative position. Y v

2; In a fluid .pressure controlled lock for doors, andthe like,.the combination of a lock including a pressure Vcontrolled lookin-g member, a storage tank from Which, pressure is supplied: to adjust said locking member to operative position, means for controlling the rel-ease of said pressure from the tank to regulate the time required for the lockingV member to move in inoperative position,'and a signal; operated by the release of said pressure.

3. In a iiuid pressure controlled look for doors and the like, theY combination With the air brake system of a train; ofa storage tank supplied with pressure from: said system,l a locking member connected to. said tank andV adj ustedlby. thepressure therefrom to aA locking position, means for releasing the pressure Afrom said tank wherebyn said locking member will return to its inoperative position, and means for controlling the release of said pressure from the tank to regulate the time required for the locking member to move to inoperative position.

4. In a fluid pressure controlled lock for doors and the like, the combination With the air brake system of a train; of a storage tank supplied With pressure from said system, a locking member connected to said tank and adjusted by the pressure therefrom to a locking position, means for releasing the pressure from said tank whereby said locking member will return to its inoperative position, means for controlling the release of said pressure from the tank to regulate the time required for the locking member to move to inoperative position, and a signal operated by the release of said pressure.

5. In a fluid pressure controlled lock for doors and the like, the combination with the air brake system of a train; of a storage tank supplied with pressure from said system, a looking member connected to said tank and adjusted by the pressure therefrom to a locking position, means for retaining the pressure within said tank whereby the locking member will remain in locking position after the air brake system has been disconnected from the tank, means for releasing the pressure from said tank whereby said locking member will return to its inoperative position, and means for controlling the release of said pressure from the tank to regulate the time required for the locking member to move to inoperative posltion. Y

6. In a fluid pressure controlled lock for doors and the like, the combination of a lock including a pressure controlled locking member, a storage tank from which pressure is supplied to adjust said locking member to operative position, an outlet for said tank having apertured branch pipes extending in opposite directions therefrom and through the apertures of which the pressure in the tank is adapted to escape, and means operable from the exterior of the car normally preventing the escape of pressure through said apertures and adjustable to permit of said escape.

7. In a fluid pressure controlled lock for doors and the like, the combination of a lock including a pressure controlled locking member', a storage tank from which pressure is supplied to adjust said locking member to operative position, an outlet for said tank having apertured branch pipes extending in opposite direct-ions therefrom and through the apertures of which the pressure in the tank is adapted to escape, means operable from the exterior of the car normally preventing the escape of pressure through said apertures and adjustable to permit of said escape, and a valve adjustable with respect to said outlet and having various sized openings therein adapted to register with the apertures in said branch pipes whereby the escape 0f pressure through said apertures is controlled to regulate the time required for the locking member to move to inoperative position.

8. In a fluid pressure controlled lock for doors and the like, thecombination of a lock including a pressure controlled locking member, a storage tank from which pressure is supplied to adjust said locking member to operative position, an outlet for said tank having apertured branch pipes extending in opposite directions therefrom and through the apertures of which the pressure in the tank is adapted to escape, means operable from the exterior of the car normally preventing the escape of pressure through said apertures and adjustable to permit of said escape, a valve adjustable with respect to said outlet and having various sized openings therein adapted to register with the apertures in said branch pipes whereby the escape of pressure through said apertures is controlled to regulate the time required for the locking member to move to inoperative position, and a sounding signal supported by said outlet and operated by the escape of pressure through said apertures and openings.

9. In a car door construction, the combination of a hasp pivoted to the door and having a transverse plate at one end provided vvith openings therein, eye bolts carried by the door frame and engageable in said openings, means engaging said eye bolts for locking the door in closed position. a locking plate pivoted to the body of the hasp and adapted to extend transversely therefrom and through the frame of the door, and fluid pressure operated means engageable with said locking plate for also locking the door.

In testimony whereof, we affix our signatures in the presence of two witnesses.

Witnesses:

GEO. W. FELLERS, C. W. FELLnRs.

Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

